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No. 626,405. Patented-lumps,1899.

J. E. BANCBOFT. I HYDRUCARBON BURNER.

A lication filed Dec. 11, 1897;)

(No Modei.)

UNrrnn STATES PATENT OFFICE.

JAMES E. BANCROFT, OF TOLEDO, OHIO, ASSIGNOR TO THE NATIONAL CEMENT AND RUBBER MANUFACTURING COMPANY, OF SAME PLACE.

HYDROCARBON-BURN ER.

SPECIFICATION forming part of Letters Patent No. 626,405, dated. June 6, 1899.

Application filed December 17, 1897- Serial No. 662,245. (No model.)

To all whom it may concern.-

Be it known that I, JAMES E. BANCROFT, of Toledo, count-y of Lucas, and State of Ohio, have invented certain new and useful Improvements in Hydrocarbon-Burners;- and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon,which form part of this specification.

My invention relates to a hydrocarbonburner, and has for its object to provide a Vaporizer formed in the shell of the burner and surroundinga combustion-chamber, with which said vaporizer is connected by a pipe having a valve-controlled jet-orifice adapted to discharge into said combustion-chamber, the combustion-chamber being rotatable in a vertical plane.

In the drawings, Figure 1 is a side e1evation of a burner constructed in accordance with my invention. Fig. 2 is a rear elevation in which the starting-pan is omitted and Fig. 3 is a vertical cross-section on line m m, Fig. 1.

1 designates a burner, comprising conical portions 2 and 3, having their smaller ends 4: and 5 located in inverse relation to each other, and at the base 6 of the conical portions, centrally of the burner, there is formed within the shell thereof a plurality of communicatingvaporizing-chambers 7,1ocated around the periphery of the heating-chamber, as shown in Fig. 3. At the point of the heating-chainber there is also formed a projecting coupling 9, threaded internally for securing the burner to the hydrocarbon-00nd uit 10,having secured thereto a swivel-couplin g 11, which allows the burner to be placed in a horizontal position, and is secured to a stationary conduit 12, communicating with the hydrocarbon-reservoir. (Not shown in the drawings.) The vaporizing-chambers 7 are closed by means of plugs 13, engaging coincident screw-threaded portions formed at the outer ends 14 of the chambers.

14 designates a vapor-duct located at the periphery of the conical portions 2, being integral therewith and communicating with the vaporizing-chambers 7 at the point 15, thereby causing the hydrocarbon entering through the conduit 10 into the vaporizing-chamber 7 to travel circu-mferentially to the burner. The vaporized hydrocarbon is led through the conduit 14 to a needle-valve 16 through a pipe 17, which is secured to the conduit 14 at the point 18. The conical portion 2 is perforated, as shown in Figs. 1 and 2, for the admittance of air, which is induced to enter into the burner by the force of the vapor escaping the needle-valve 16. The escaping vapor and the air drawn into the perforated conical end portions are intimately intermingled at the enlarged central portion 19, and the lighted gases are projected through the tapering end portion 5.

In the initial operation the burner is set in a vertical position and is adapted to assume this position by means of the swivel connection 11, and the needle-valve is then opened, allowing a portion of the fluid hydrocarbon to escape into a pan-shaped disk 20, having a conduit formed therein. The liquid hydrocarbon in the pan is lighted and the heat therefrom vaporizes the hydrocarbon contained in the heating-chamber and the ducts leading to the needle-valve 16. Proportionally to the consumption of the hydrocarbon in the pan the valve 16 is again opened, allowing the generated vapors to escape through the said valve and burn in the interior of the burner. When the liquid hydrocarbon is all consumed, the valve is opened, allowing the hydrocarbon to escape, and the burner is caused to assume its horizontal or inclined position simultaneously with the opening of the valve 16. The vapor escaping through the valve, which is centrally located in the aperture of the end of the conical portion 2, causes an inward flow of air through the perforations and the central aperture of the conical portion 2. The vapor intimately intermingles with air in the centrally-enlarged portion of the burner and the flame is projected through the conical end portion 5. The intensity of the flame is adjusted by means of the needle-Valve 16, which allows more or less of the vapor to escape.

It has been found that after the'vap'orizi-ngburner has been used for a period of time the interior thereof is coated with a deposit, decreasing thepassage for the vapor and hydrocarbon through the same, necessitating the removal of the coating, and for which; purpose I have provided each separate ch-amher with a removable plug, thereby allowing access to each chamber for removing such deposits or coatings from the interior Walls of the chambers.

I have also found that with a burner constructed in accordance with myinvention the escaping vaporized hydrocarbon and air are p more intimately intermingled in the combustion-ch-amber, generating a more intense heat A than has heretofore been accomplished.

:It will be seen that in the foregoingd'escrip- I ti'on I have described a burner used for brazf ing-fur'naces, but, however, without d-epart- 5 ing from the spirit of my invention may employ the same burner for torches -or other analogous purposes having for their object to vaporize the hydrocarbon previous to com- I .bustion.

JAMES E. BANCROFT.

Witnesses WILLIAM WEBSTER,

MAUD SCHUMAICHER. 

